<template>
  <div class="list" ref="wrapper" >
    <div>
      <div class="area">
        <div class="title border-topbottom" >当前城市</div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="button">{{this.$store.state.city}}</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom" >热门城市</div>
        <div class="button-list">
          <div class="button-wrapper" v-for="item of hot" :key="item.id" @click="handleCityClick(item.name)">
            <div class="button" >{{item.name}}</div>
          </div>
        </div>
      </div>
      <div class="area" v-for="(item, key) of allCities" :key="key" :ref="key">
        <div class="title border-topbottom">{{key}}</div>
        <div class="item-list">
          <div class="item border-bottom" v-for="innerItem of item" :key="innerItem.id"  @click="handleCityClick(innerItem.name)">{{innerItem.name}}</div>
        </div>
      </div>
    </div>

  </div>
</template>

<script>
import Bscroll from "better-scroll"
export default {
  name: "CityList",
  props: {
    hot: Array,
    allCities: Object,
    letter: String
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  },
  methods: {
    handleCityClick (city) {
      this.$store.commit('changeCity', city);
      this.$router.push('/');      
    },
    haha () {
      console.log('hhh');
    }
  },
   watch: {
     letter () {
       console.log(this.letter);
       if(this.letter){
         const element = this.$refs[this.letter][0];
         // console.log(element);
         this.scroll.scrollToElement(element)
       }
     }
   }

 }
</script>


<style lang="stylus" scoped >
  @import '~styles/varibles.styl'
  .border-topbottom
    &:before
     border-color #ccc
    &:after
     border-color #ccc
  .border-bottom
    &:before
      border-color #ccc
  .list
    overflow hidden
    position absolute
    top: 1.58rem
    left 0
    right 0
    bottom 0
    .title
      line-height .54rem
      background #EEEEEE
      padding-left .2rem
      color #666
      font-size .26rem
    .button-list
      overflow hidden
      padding .1rem .6rem .1rem .1rem
      .button-wrapper
        float left
        width 33.3%
        .button
          margin .1rem
          padding .1rem 0
          text-align center
          border .02rem solid #CCCCCC
          border-radius .06rem
    .item-list
      .item
        line-height .76rem
        color #666
        padding-left .2rem
</style>
